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  9. Q255

RRB Technician (Grade I Signal + Grade III) 2026 · Question 255 of 265

Which of the following correctly explains why veins have valves but arteries do not?

  1. AVeins carry blood at low pressure and need valves to prevent backflowCorrect
  2. BVeins carry blood under high pressure, so valves prevent it from bursting
  3. CArteries carry oxygenated blood and do not need valves
  4. DArteries are located deep inside the body and are supported by muscles

Answer: A. Veins carry blood at low pressure and need valves to prevent backflow

Official answer key verified. Detailed explanation coming soon.

Source: RRB Technician Grade III 10-Mar-2026 Shift 3 (oliveboard compilation with answer key) · reliable-secondary

← Q254View full paper (265 questions)Q256 →

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